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EJNMMI Physics
Fig. 2 | EJNMMI Physics

Fig. 2

From: Lesion quantification and detection in myocardial 18F-FDG PET using edge-preserving priors and anatomical information from CT and MRI: a simulation study

Fig. 2

Mis-alignment of PET and MR datasets. Two examples of mismatched MRs: on the left, the diastolic volume in the MR is reduced by 10 % and the next cardiac phase is chosen relative to the PET. On the right column, the heart of the MR is up-scaled by 5 % when compared to the heart of the corresponding PET dataset. On the top row, the contours of the initial activity phantom are overlapped in blue. In the bottom row, the same phantom was reconstructed using OSEM3D with RR and post-smoothing of 5 mm (red colour scale) and it was overlapped to the MR images (grey colour scale). While in the top row, the misalignment between PET and MR is very easily detectable, it would be harder to identify when using a realistic PET image

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